I did used to do a rather nice quorn sausage casserole - but don't like them cooked just as 'sausages'. I used to grill them and cut them into bits and add them to a spicy tomato sauce made with onions, peppers, garlic, mushrooms, and red lentils. I let it simmer for about 15 mins so the flavours mixed, then serve with wholemeal pasta twirls or mash.
Will have to make that again soon. Mmmm.